μελάνδετος
From LSJ
συνερκτικός γάρ ἐστι καὶ περαντικός, καὶ γνωμοτυπικὸς καὶ σαφὴς καὶ κρουστικός, καταληπτικός τ' ἄριστα τοῦ θορυβητικοῦ → he's intimidative, penetrative, aphoristically originative, clear and aggressive, and superlatively terminative of the obstreperative
English (LSJ)
ον,
A bound or mounted with black, φάσγανα καλὰ μελάνδετα Il.15.713; μ. ξίφος with iron scabbard, E.Ph.1091; σάκος μ. iron-rimmed shield, A.Th.43; but μελάνδετον φόνῳ ξίφος E.Or.821 (lyr.).